Thursday, February 5, 2015

Most popular CST content in 2014


Every year thousands of welcome visitors like you come by cst.com and this blog, clocking up an impressive hit count. We here at CST appreciate your interest.

As 2015 moves into its second month, we thought now is a good time to look back on the most popular content of 2014 - based on the number of eyeballs (including yours) - and share it with you.

So here's a flashback.

The five hit count highlights of 2014


Electromagnetic Circuit Co-Simulation of a Touchscreen Capacitance Sensor System


Coming in last, but certainly not least, was this application article prepared by CST's Adrian Scott, the market development manager for low frequency software solutions . As the article says, EM field simulation is an extremely useful tool in the design and analysis of devices based on the measurement of capacitance to establish the presence and/or position of objects. A touchscreen device is a good example of this and is discussed in this article.


European User Conference 2014 Technical Sessions


For more than 10 years now, CST has been bringing together users based in Europe for an annual conference. The best and brightest from diverse industries come together and share their insights and innovations. It's perhaps no surprise then that when we post about the trends that came out of the conference, the page receives a veritable stampede of hits. We also post most of the technical presentations online and whatever weird, wonderful world of EM design you inhabit, there's most likely a presentation that will interest you. Take a look here for yourself. While you're there, check out the topics and focus sessions for EUC 2015, to be held in April in Darmstadt, Germany.


Multiport Antenna Matching in Optenni Lab - MIMO


Taking third place was this blog post written by Jussi Rahola, managing director of Optenni Ltd. and brains behind Optenni Lab, a software tool for matching circuit design and optimization. The guest post was about the introduction of multiport matching into Optenni Lab. Jussi and colleagues identified two distinct cases for multiport matching, each with their own optimization goals: systems with multiple radiating antennas (e.g. MIMO antennas) where the goal is to maximize transmitted power and minimize the coupling between elements, and systems with both radiating and transmitting elements (e.g. wireless power transfer) where the best efficiency is instead achieved by maximizing the coupling between antennas. In this guest post, Jussi discusses the case of designing the matching for multiple radiating antennas in the same device. The other case was covered in a separate blog entry.


Microstrip Patch Array Design


CST engineers prepared and published this popular application article early in 2014. It explains the design process for a planar microstrip patch array for WLAN frequencies using the circuit and full-wave 3D solvers and optimization tools in CST STUDIO SUITE®. The goal in this case is to design an array with high directivity, low cost and low sidelobes, exhibiting a good impedance matching in the frequency range 5.18 – 5.85 GHz.


Simulation and Measurement: Complementary Design Tools


Winning first place with an impressive number of hits, was this post about the joint Rhode & Schwarz and CST workshop, titled Measurement meets Simulation, held in July. Related and also popular, is this page and webinar presented by CST senior application engineer Vratislav Sokol. The webinar, now available to watch on demand, explored the relationship between simulation, using CST STUDIO SUITE®, and measurement, and explained what each domain is best suited for. In some situations measurement can be difficult to perform while simulation is simpler, and vice versa. You can watch this webinar below.
















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